Prime example of a late-1960s (non-porn) fetish stag reel. A latex-clad mistress punishes four slave girls with a rope flogger. Non-stop whipping and spanking action plus obligatory bondage. A bit more serious and consistent in tone than most of the semi-comic shorts in this sub-genre.
This public domain film loop has been re-released on "Bizarro Sex Loops #15".